Monitoring With Prometheus
1 like1,309 views
The document outlines the significance of monitoring systems using Prometheus, discussing the differences between logs and metrics, types of metrics, and the architecture of Prometheus. It highlights the importance of real-time analysis, visualization, and alerting to prevent service interruptions. Additionally, it covers exporters for integrating third-party metrics and mentions alternative monitoring solutions to Prometheus.
Monitoring With Prometheus
- 1. Monitoring with Prometheus Himanshu Rajput Software Consultant Knoldus Inc.
- 2. Agenda ● Monitoring and its importance ● Logs vs Metrics ● Types of Metrics ● Prometheus ● Architecture of Prometheus ● Exporters ● Visualization ● Alerting ● Demo
- 3. Monitoring and Its importance ● Faults that cause critical situations may appear at any time. ● It will be necessary to control the operation so that a possible error does not end up affecting the service given to users. ● To detect and prevent failures. ● Analyse the operation and performance, and to detect and alert about possible errors of devices, infrastructures, applications, services. ● Analysis in real time, alerts, visualization etc
- 4. Logs vs Metrics Logs ● Generally plain text or Json ● Source - Application, databases, Kafka etc. ● Little hard to process and query ● Parse logs to obtain metrics Metrics ● A key-value pair that give information about a particular process or activity. ● Measured over intervals of time— time series. ● Can be compressed, stored, processed and retrieved far more efficiently than logs.
- 5. Type of Metrics ● Counter ● Gauge ● Histogram
- 6. Prometheus ● An open-source systems monitoring and alerting toolkit. ● Multi-dimensional data model with time series data identified by metric name and key/value pairs. ● A flexible query language (PromQL) ● Targets are discovered via service discovery or static configuration ● Time series collection happens via a pull model over HTTP ● Pushing time series is supported via an intermediary gateway ● Graphing and dashboarding support.
- 7. Architecture
- 8. Exporters ● Libraries and servers which help in exporting existing metrics from third-party systems as Prometheus metrics. ● Some exporters are maintained as part of the official Prometheus GitHub organization ● Easy to setup and integrate ● Predefined metrics in Prometheus format. Complete list of exporters can be found here
- 9. Visualization ● Prometheus has expression browser available at /graph. ● This is primarily useful for ad-hoc queries and debugging. ● For better visualization use Grafana ● Grafana.com maintains a collection of shared dashboards.
- 10. Alerting ● Alerting with Prometheus is separated into two parts. ● Alerting rules in Prometheus servers send alerts to an Alertmanager ● Alertmanager then manages those alerts, including silencing, inhibition, aggregation ● Alertmanager sends out notifications via methods such as email, PagerDuty and HipChat.
- 12. Alternatives to Prometheus ● Nagios ● InfluxDB ● Graphite ● OpenTSDB ● Sensu
- 14. THANK YOU!